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Packaged Rooftop HVAC System

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					S-Class™ Packaged Rooftop Unit ◆ Up To 10.8 EER and 13.2 IPLV




                           S-claSS™
                           Commercial Packaged
                           Rooftop Units

                           35- to 50-ton models
                           Superior comfort and performance




            Litho U.S.A.
ExcEptionally HigH EfficiEncy
and REliablE pERfoRmancE
	                        S-Class™ rooftop units               Lennox is committed to enhanced comfort and efficiency in all of their products. The S-Class™
                                   at a glance:               rooftop unit product line is an excellent example of Lennox’ tradition of leading-edge
                 Verification of efficiency ratings           innovation, quality engineering and reliable performance.
                 by an independent third party

             Environmentally friendlier R-410A                Protecting health and profits                                  Designed to save money
                   refrigerant on select models
                                                              S-Class units were specially designed                          Saving money is about more than the price of
                  Humiditrol® dehumidification                to protect businesses from problems                            a rooftop unit. S-Class units were designed to
               system for excellent control over              with productivity and indoor air quality                       achieve a low total cost of ownership by offering
                       indoor air quality (IAQ)               (IAQ). Options such as the Humiditrol®                         exceptionally high energy-efficiency ratings,
                                                              dehumidification system help control                           reliable operation and faster, easier installation
              Low cabinet height for increased
              placement flexibility and reduced               humidity and the spread of mold while                          and maintenance. This will reduce spending
                    building construction cost                four-stage heating and cooling control                         now and for years to come.
                                                              helps eliminate temperature swings and
         Greater capacity and reduced energy
                                                              create a comfortable environment. These
         usage achieved with factory-installed                                                                                3-Year Cooling and Heating Costs
               integral energy recovery wheel                 factors help lead to a healthier and more
                                                              productive environment.                                           $25000
          More than 200 Integrated Modular
                                                                                                                                $20000
          Controller (IMC) functions for digital                                                                                                 $19,869
                                                               Temperature Swing Comparison
          accuracy and enhanced performance                                                                                     $15000
                                                                                                                                                                    $13,125
               Optional cleanable, double-wall                                                                                  $10000
                       surfaces to protect IAQ
                                                                                                                                  $5000
     Optional high-static power exhaust fans                           Four-stagecontrol
                                                                       Two-stagecontrol                                                 0
         for powerful, precise, building-static
                                                                                                                                      EER 	            7.0	           10.8
                              pressure control
                                                              Designed for application solutions                                       Lennox’ S-Class™ rooftop unit
                    Reduced noise and vibration
                                                              S-Class units are available with a broad
                    with spring isolation options                                                                            Illustrates the low 3-year cooling costs you can expect
                                                              selection of options and accessories to                        from a 40-ton S-Class gas/electric rooftop unit versus a
                                                              meet a variety of application solutions.                       unit with lower efficiency ratings. Actual savings may vary
                                                                                                                             depending on system settings, equipment maintenance,
                                                              A low unit height increases placement                          local weather, actual construction, installation of
                                                              flexibility and even helps save on building                    equipment, duct system, hours of operation, local fuel
                                                                                                                             rates and other factors.
                                Efficiency Rating             construction cost.
                                                                                                                             Utility rate source:  .S. Department of Energy national
                                                                                                                                                  U
                                                                                                                                                  average commercial energy rates
                  Up to 10.8 Energy Efficiency
                                    Addition needed                                                Addition needed
    No addition needed              to Parapet Wall           No addition needed                   to Parapet Wall                                for August 2007
                  Rating (EER) and up to 13.2                        Low-
                                                                                                                             Building type:        ffice building, occupied Monday
                                                                                                                                                  O
                                                                     height
                          Competitive unit (IPLV)
             Integrated Part Load Value
          Unit A                                                     unit            Standard-height unit
                                                                                                                                                  through Friday from 7 am to 6 pm
                                                                                                                             City:                 ansas City
                                                                                                                                                  K
                                          Warranty                                                                           Software:            L
                                                                                                                                                   ennox Total Cost of Ownership™
                                                                                                                                                  Calculator, version 1.0.3
                    15-Year Limited Warranty
              on stainless steel heat exchanger
                  10-Year Limited Warranty                                                              Standard-height unit            Low-height unit          Low-height unit savings
      on aluminized steel gas heat exchanger                  Unit height                                       6' 8"                          5' 8"                          1'
    5-Year Limited Warranty on compressor                     Parapet wall height                                 7'                            6'                            1'

                    3-Year Limited Warranty                   Parapet wall length                               800'                           800'                           0'

             on Integrated Modular Controller                 Parapet wall total sq. ft.                       5,600'                         4,800'                         800'
                                                              Parapet wall cost per sq. ft.                    $30.00                         $30.00                       $0.00
                    1-Year Limited Warranty
                                                              Total parapet wall cost                         $168,000                       $144,000                     $24,000
            on remaining covered components
                                                              Information based on a 40,000-sq.-ft. office building (200' x 200') with a moderately priced parapet wall. Actual cost savings
               See actual warranty certificate for details.   will vary depending on parapet wall design, dimensions and cost per sq. ft.
SupERioR dESignEd Rooftop unit

	 Optional High-Static Power Exhaust Fan Spring Isolation—
                                                                                                                  ••         ••
   Helps reduce noise by isolating components using two-inch
   vibration isolation springs.
                                                                                                                                       ••
2	 Optional Integral Power Exhaust Fan—Standard or                                                                                           ••
   high-static power exhaust fans and modulating capability
   provide powerful and precise building static control.

3	 Optional Integral Energy Recovery Wheel—Saves
   energy and reduces unit size needed for outdoor
   air ventilation.

4	 Optional Humiditrol® Dehumidification System—
   Improves IAQ through an innovative dehumidification
   system capable of removing moisture based on actual
   humidity levels.

5	 Removable Drain Pan—Improves cleanability and IAQ.

6	 Enhanced Panel Design—Provides rain, wind and hail
                                                                  
   protection of internal components.                                           3
                                                                       2
7	 Step-in Blower Compartment—Improves access and
                                                                                    4
   reduces maintenance time.

8	 Optional Supply Fan Spring Isolation—Helps reduce noise by
                                                                                                          6
   isolating components using two-inch vibration isolation springs.                               5
9	 Heating Section—Multiple gas valves and electric heating                                                 7
   elements (not shown) allow unit to provide up to four heating                                                  8
   stages. Optional modulating gas provides excellent temperature
                                                                                                                         9            ••
   control with a gas heat operating range between 25% and 100%.

••	 Hinged Toolless Access Panels—Provide quick access to
                                                                                                                                            ••
   components and protect panels and roof from damage
   during servicing.

••	 Coil Cleaning Access Door—Improves internal coil access
   for better cleaning.

••	 Slab Condenser Coil—Permits faster, more thorough coil cleaning.

••	 Full-Perimeter Base Rail—Provides greater structural
   integrity, so the unit is easier to handle when rigging                 ••		Louvered Grille—Protects coil from damage during
   and transporting.                                                          installation, high wind and hail.

••	 Optional Compressor Spring Isolation—Helps reduce noise by             ••	 Integrated Modular Controller—Digital accuracy and
   isolating components using two-inch vibration isolation springs.           enhanced unit performance with over 200 unit control

••	 Optional Hot Gas Bypass—Allows unit operation in low                      functions. Impressive diagnostic capability provides simple

   airflow applications.                                                      troubleshooting to reduce operation and service cost.

••	 Multiple Compressors—Allow the unit to provide efficient               ••	 Corrosion-Resistant Cabinet—Galvanized steel cabinet

   performance and even temperatures with four cooling stages.                under a two-layer surface protects against rust
                                                                              and corrosion.
••	 Optional Phase Monitor—Prevents damage to electrical
   components from single phasing, phase reversal and low-                 ••	 Independent Motor Mount—Allows for easy, efficient access

   voltage conditions.                                                        without removing top panel.
                                                                                it’S a tRuly
                                                                                modulaR SyStEm
                                                                                The IMC is a powerful controller that enhances
                                                                                the standard features on premium Lennox® rooftop
                                                                                units. Yet with application-specific add-on modules,
                                                                                the IMC provides even more powerful control for
                                                                                specific, customized applications.


               ••                            ••
                                                                                                              Integrated
                                                                                                              Modular Controller
                                                                                Add-on modules allow configuration, control,
                                                                           ••
                                                                                feedback and diagnostics for:
                                                                                ■   Outdoor air motorized dampers or economizers
                                                                                    with power exhaust control, including demand
                                                                                    control ventilation
                                                                                    • Now it’s possible to bring in sufficient outside
                                                                                      air for a comfortable, healthy environment
                                                                                      without exceeding energy budgets.

                                                                                ■   Constant-volume bypass or variable-volume
                                                                                    rooftop control
                                                                                    • Count on zoning that meets your terms by using
                                                                                      a premium L Series® rooftop unit with variable-
                                                                                      frequency drive to minimize lifecycle costs,
                                                                                      or a constant-volume unit with bypass to
                                                                                      keep initial equipment costs in check.
                                                                      ••        ■   Humiditrol hot gas reheat
                                                                                    • Dramatically reduce humidity by subcooling
                                                                 ••   ••              air, then recycle hot refrigerant gas from a
                                                                                      compressor to reheat dry air to a comfortable
••                                                           ••                       supply temperature.
                                                        ••                      ■   Four-stage control inputs from third-party DDC
     ••
                      ••                                                            controllers or thermostats
                                        SGA480
                                                                                    • Allow a thermostat or third-party DDC controller
                                                                                      to individually control up to four separate
                                                                                      compressors and heating stages.*

                                                                                ■   Interoperability via BACnet® or LonTalk® protocols
          ••	 Stainless Steel Heat Exchanger—Provides application                   • Communicate using the BACnet Application
             flexibility and allows operation at low outdoor                          Specific Controller device profile, LonMark® Space
             air temperatures.                                                        Comfort Controller functional profile or LonMark
                                                                                      Discharge Air Controller functional profile.
          ••	 Optional Double-Wall Construction—Improves
             cleanability of internal surfaces for better IAQ.                  ■   Additional compressors, gas valves, electric heat
                                                                                    and fans in large units
          ••	 Optional High-Efficiency Filters—Improve air filtration
             for better IAQ.                                                    ■   Reversing valves in heat pump units

          ••	 Optional Integral Economizer—Saves energy by using                 *Thermostat or controller must provide individual staging
                                                                                  commands. Not required to achieve four stages when IMC
             outdoor air for cooling when suitable.                               is configured for zone sensor or discharge air control.

                                                                                    LonTalk and LonMark are registered trademarks of the
          ••	 Optional Outdoor Air CFM Control—Helps maintain                       Echelon Corporation.
                                                                                    BACnet is a registered trademark of the American Society of
             outdoor air volume for variable-air-volume units.                      Heating, Refrigeration and Air-Conditioning Engineers (ASHRAE).
optionS and accESSoRiES
Factory-Installed Options
for Fast Installation
With their extensive list of                                • High-static power exhaust fans (50% and                          • Third-party DDC options
factory-installed options, S-Class               ™            100%, optional modulating capability)                            • Systems integration with BACnet®
                                                            • Manual or motorized fresh air dampers                              or LonTalk® protocol
35- to 50-ton rooftop units can be
                                                            • Liquefied propane gas ready                                      • Spring vibration isolation, compressors
built and tested at the factory
                                                              (gas/electric units only)                                        • Spring vibration isolation, supply fan
to your exact specification.                                • Stainless steel heat exchanger                                   • Spring vibration isolation, high-static
                                                              (gas/electric units only)                                          power exhaust fans
• R-410A environmentally
                                                            • Blower proving switch                                            • Phase monitor
  friendlier refrigerant
                                                            • Dirty-filter switch                                              • Export packaging
• Humiditrol dehumidification ®

  system                                                    • Supply and/or return air smoke detector                          • Horizontal discharge
• Capacity staging down to 25%                              • Non-powered GFI                                                  • 30–180 KW Electric Heat (electric/
• Refrigerant service valves                                • Powered GFI (factory-wired)                                        electric units only)
• Variable-frequency drives on                              • Non-fused disconnect                                             • 500 and 800 kBtuh Gas Heat (gas/
  supply fan                                                • Coil corrosion protection                                          electric units only)
• Economizer                                                • Double-wall construction                                         • Modulating gas (500 or 800 kBtuh
                                                                                                                                 gas/electric units only)
• Barometric relief dampers                                 • Integral energy recovery wheel
                                                                                                                               • Hot gas bypass
• Standard power exhaust fans (50%                          • MERV 8, 11 and 15 filters
  and 100%)                                                                                                                    • Outdoor air CFM control
                                                            • Stainless steel drain pan



S-claSS ™ Rooftop unit pERfoRmancE SpEcificationS
                                              cooling data                              HEating input                   aiR Supply RangE               pHySical data

                                               Gross        Full           Part                                                                          Dimensions
                       Nominal                  Cap.       Load            Load          Standard            High                          Static         HxWxL         Ship Wt.
                       Tonnage      Model      [Btuh]      [EER]          [IPLV]          [Btuh]            [Btuh]         CFM            [in wc]          [inches]       [lbs.]
                         35       SGA420S2B   440,000      10.5            10.8          500,000            800,000     9800-15750        .25-4.0       68 x 90 x 286   6345-8205
                         35       SGA420S2V   440,000      10.5            12.6          500,000            800,000     4200-15750        .25-4.0       68 x 90 x 286   6345-8205
                         40       SGA480S2B   485,000      10.0            10.8          500,000            800,000    11200-18000        .25-4.0       68 x 90 x 286   6345-8205
  gaS/ElEctRic unitS




                         40       SGA480S2V   470,000      10.0            12.6          500,000            800,000     4800-18000        .25-4.0       68 x 90 x 286   6345-8205
                         40       SGA480H4B   495,000      10.8            11.8          500,000            800,000    11200-18000        .25-4.0       68 x 90 x 286   6345-8205
                         40       SGA480H4V   480,000      10.6            13.2          500,000            800,000     4800-18000        .25-4.0       68 x 90 x 286   6345-8205
                         45       SGA540S2B   550,000       9.5            10.0          500,000            800,000    12600-20250        .25-4.0       68 x 90 x 286   6345-8205
                         45       SGA540S2V   540,000       9.5            11.2          500,000            800,000     5400-20250        .25-4.0       68 x 90 x 286   6345-8205
                         50       SGA600S2B   600,000       9.5            10.0          500,000            800,000    14000-22500        .25-4.0       68 x 90 x 286   6345-8205
                         50       SGA600S2V   590,000       9.5            11.2          500,000            800,000     6000-22500        .25-4.0       68 x 90 x 286   6345-8205
                         50       SGA600S4B   600,000       9.5             9.8          500,000            800,000    14000-22500        .25-4.0       68 x 90 x 286   6345-8205
                         50       SGA600S4V   590,000       9.5            11.0          500,000            800,000    6000-22500         .25-4.0       68 x 90 x 286   6345-8205
                                                                                                KW Range
                         35       SCA420S2B   440,000      10.5            10.8                    30-120               9800-15750        .25-4.0       68 x 90 x 286   6345-8205
                         35       SCA420S2V   440,000      10.5            12.6                    30-120               4200-15750        .25-4.0       68 x 90 x 286   6345-8205
                         40       SCA480S2B   485,000      10.0            10.8                    30-150              11200-18000        .25-4.0       68 x 90 x 286   6345-8205
  ElEc./ElEc. unitS




                         40       SCA480S2V   470,000      10.0            12.6                    30-150               4800-18000        .25-4.0       68 x 90 x 286   6345-8205
                         40       SCA480H4B   495,000      10.8            11.8                    30-150              11200-18000        .25-4.0       68 x 90 x 286   6345-8205
                         40       SCA480H4V   480,000      10.6            13.2                    30-150               4800-18000        .25-4.0       68 x 90 x 286   6345-8205
                         45       SCA540S2B   550,000       9.5            10.0                    45-165              12600-20250        .25-4.0       68 x 90 x 286   6345-8205
                         45       SCA540S2V   540,000       9.5            11.2                    45-165               5400-20250        .25-4.0       68 x 90 x 286   6345-8205
                         50       SCA600S2B   600,000       9.5            10.0                    45-180              14000-22500        .25-4.0       68 x 90 x 286   6345-8205
                         50       SCA600S2V   590,000       9.5            11.2                    45-180               6000-22500        .25-4.0       68 x 90 x 286   6345-8205
                         50       SCA600S4B   600,000       9.5             9.8                    45-180              14000-22500        .25-4.0       68 x 90 x 286   6345-8205
                         50       SCA600S4V   590,000       9.5            11.0                    45-180              6000-22500         .25-4.0       68 x 90 x 286   6345-8205

Units with variable-frequency drives (labeled “V” in the model number) have a minimum low airflow rating of 120 CFM per nominal ton during cooling-only operation.
Note: Due to Lennox’ ongoing commitment to quality, all specifications, ratings and dimensions are subject to change.
                         SolutionS foR cuStomizEd comfoRt




                Don’t just choose a Lennox® product…choose a Lennox Commercial Comfort System. These complete
                packages of HVAC solutions provide tools to create a healthier and more comfortable environment.


                packaged units                  Heating                              indoor air Quality
                • Strategos Rooftop Units
                           ™
                                                • T-Class Unit Heaters               • Humiditrol®
                • S-Class™ Rooftop Units        • Unit Heaters                         Dehumidification System
                • Landmark™ Rooftop Units       • Duct Furnaces                      • Demand Control Ventilation
                • L Series® Rooftop Units       • Furnaces                           • Energy Recovery
                • T-Class™ Rooftop Units                                               Ventilators/Systems
                                                commercial controls                  • Air Filters
                Split Systems                   • L Connection® Network              • UVC Lamps
                • S-Class Air Conditioners/     • Systems Integration Solutions
                  Heat Pumps                    • Commercial Thermostats
                • T-Class Air Conditioners/
                  Heat Pumps
                • Air Handlers
                • Indoor Coils




                                                © Lennox Industries Inc. 2009                                       Litho U.S.A.

(76M74)-01/09                                   Visit us at www.lennox.com, or contact us at 1-800-9-LENNOX.        PC56096

				
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Description: Information on top of the line Lennox HVAC packaged rooftop solution (S-Class 35-50 tons with energy efficiency rating of up to 10.8)